Understanding Length Of An Array - Follow The Execution In The Immediate Window?

Sep 21, 2011

I have the following statement: ReDim lsDataMergeStart(lsDataMergeRange.Length)When I follow the execution in the immediate window, I get the following results: lsDataMergeRangeLength =1 lsDataMergeStart = 2 Why?





View 12 Replies


ADVERTISEMENT

Can Auto-size Font Size Follow By Length Of String

Jul 4, 2010

I had set a print format to print some word in a Text box, when I input the text in text box is an normal size from system,but I want it print out to printer follow the Rectangle size that is was set to print out on paper.actuary i want it can auto size the font size follow by the length of string.

View 1 Replies

VS 2010 Comboboxes Follow Committed To Change Just Once And DataGridView Do Not Follow Filter?

Dec 11, 2011

I've uploaded in SkyDrive my project to give a better picture of my problem:Cascading Combobox works just once in _SelectionChangeCommitted, and, DataGridView do not follow 3rd Combobox filter?

View 2 Replies

Initialize An Indefinite (eg. Decimal) Array Without Setting Boundaries On The Array Length?

Nov 10, 2009

initialize an indefinite (eg. Decimal) array without setting boundaries on the array length?

View 2 Replies

Sort An Array Of Doubles Into A Lowest To Highest Array Of The Same Length?

Nov 29, 2011

best way to sort an array of doubles into a lowest to highest array of the same length.

View 10 Replies

Initialize Byte Array To Zeros Given A Specified Array Length?

Aug 2, 2011

given the following Sub, how would I initialize byte array 'temp'to zeros and give it the length of the incoming byte array passed into the subroutine?

Sub ReceivePacket(ByVal buffer As Byte())
Dim temp() As Byte 'initialize to zeros and length of buffer
temp = buffer.Skip(17).ToArray()
End Sub

View 2 Replies

VS 2010 - MessageBox.show - Maintain Execution And Display Status On Second Window / Form

Dec 2, 2011

I've created a form with several controls to specify the inputs to my program. They include TextBox, OpenFileDialog, Button and even a user control for numeric input. When the user clicks the 'GO' button, the program begins it work. Opening several files and processing a bunch of numerical data. This could take many minutes/hours with large datasets.

What I've been trying to do is have another window/form open up and send status information to it for the user to view. The info to be displayed is varied and constantly updated as the program crunches the numbers. Many many programs do just this type of activity.

I attempted to create a second form with a huge TextBox thinking I'd just write stuff to it. I called the .show method within the .click of the 'GO' button and of course the form is displayed but control of the program's execution doesn't return until the form is closed. How to I maintain execution and have a second window/form to display status?

View 3 Replies

Updating Array Length While Looping Array

Oct 9, 2009

I am working on a code that should capture the color of a pixel in a bitmap and then check if the 8 surrounding pixels have the same color. If the checked surrounding pixel HAS NOT the same color it will be ignored, otherwise if it HAS the same color, it should check for its own 8 surrounding pixels and so on.

To do that, I have created an array that starts with a single entry (the x,y coordinates of the initial pixel). So, when a pixel with the same color is found it is pushed to the end of the array. I used a for each loop supposing that VB would keep looping until the end of my array - and since it is growing, the last position of the array would be always pushed until I have not more pixels to be checked.

The problem is that VB is not respecting it, and is considering my array as if it had just 1 entry. Seems that it catch the size of the array when it enters the loop, and regardless the fact I have pushed new items to the array it doesnt keep looping it.

How can I force VB to update the end of array position while looping it? Although I think it wouldnt be necessary, here it goes the code I have so far...

Code:

View 3 Replies

Why Does The First Element In The 2d Array Determines The Length Of An Array

Jul 4, 2010

[Code]...

This adds 1 and 2 to list. My question is why does the first element in the 2d array determines the length of an array and if we want to get the length 2nd index then what will be the method for that?

View 1 Replies

Length Property In Array?

Nov 16, 2011

I just don't understand why (intValues.Length - 1) is used: to be precise why the ( - 1 ) is there?

Dim intValues(25) as integer
For intCount = 0 to (intValues.Length -1)
MessageBox.show (intValues(intCount).ToString())
Next

View 2 Replies

Combine Two 1-D Arrays Of The Same Length Into One 2-D Array?

Sep 3, 2009

how to combine two 1-D arrays of the same length into one 2-D array ?

View 7 Replies

Declaring A Variable Length Array?

Apr 26, 2010

I am new to VB.NET but used to write a lot of code in VB 6.

How do i declare a variable length array in VB.NET?

In VB6, i would just put:

Dim sArrayList() As String

But when I do that in VB.NET, it highlights my array name and says "unused local variable". What do I need to do to get it to work without an error?

View 2 Replies

How To Determine Size/length Of Array

Jul 30, 2009

I want to determine size/length of an array that is, how many elements are in my 1 dimen array, can't seem to find the right method that works.

View 9 Replies

Marshal Variable Length Array?

Jun 8, 2010

I'm trying to call the GetInterfaceInfo Windows API - it accepts a structure as one of its parameters and this structure has a member that is an array. The API populates the contents of the array when it is called and there can be any number of items in the array. How can I define such an array in my structure?

If I just use a normal .NET array like so then the program just crashes (no exception thrown)

<StructLayoutAttribute(LayoutKind.Sequential)> _
Public Structure IP_INTERFACE_INFO
Public NumAdapters As Integer

[Code]...

and this works fine, but the problem is I have to define the SizeConst attribute as you can see to something large (64 in this example) so that the API doesnt fail because the array wasnt big enough. Firstly this is a waste of memory as in most cases the number of items the API sticks in the array will be less than 10, but secondly if there was ever a case where the API wanted to put more than 64 items in then it would fail.

Using ReDim to set the length of the array at runtime seems to have no effect, and that SizeConst attribute has to be set to a constant value so there's no way I can dynamically set it.

View 8 Replies

Offset And Length Were Out Of Bounds For Array

Oct 15, 2010

i am writing a program "serial over TCP/ip " every thing is fine but my problem is that when a data received from a client i get "System. ArgumentException:Offset and length were out of bounds for the array or count is greater than the number of elements from index to the end of the source collection." what i realy want is to write 9 bytes from the clint received data to the serial port then read 19 bytes from the serial port to send to the client even if this error ocures the program still works fine and the interface between the serial port over the network also works fine, but i don't want this msg to view that the my code .[code]

View 4 Replies

One Dimensional Array Contains Nothing But Zero Length Strings?

Jul 28, 2011

The obvious first thought is:
Public Function CheckStrings(ByVal input As String()) As Boolean
For Each s As String In input
If s.Length > 0 Then Return True
Next
Return False
End Function
I'm sure there is a simpler way than that though. At least simpler in terms of the code if not necessarily the performance.

Here's my final code:
<Extension()> _
Public Function AnyNonZero(ByVal value As String()) As Boolean
If Not value.All(Function(x) String.IsNullOrEmpty(x)) Then Return True
Return False
End Function

View 3 Replies

VS 2005 : Find Out The Length Of Particular Row Of Array?

Apr 26, 2009

How can I find out the length of particular row of array?

Label1.Text = array.Length

This shows the length of whole array.

e.g. 30
0 1 2 3 4 5 6 7 8 9
0 1 2 3 4 5 6 7 8 9
0 1 2 3 4 5 6 7 8 9

I would like to get the length of 0 row.

0 1 2 3 4 5 6 7 8 9

View 4 Replies

VS 2010 - How To Find Out Length Of Array

May 31, 2010

I have an array in my application and I don't know how many values there will be in the array because it gets the data from a webpage. Filling the array with information from the webpage works except for the length, it always returns 999. This is my
dim Array() as string
Array = GBA(source, "<b>", "</b>")
Count = Ubound(Array)
How can I find out the length of my array?

View 8 Replies

Why The Following Declarationr Returns An Array With Length = 2

Feb 16, 2010

Coming from a C# background, I have no idea why the following declarationr returns an array with length = 2

Dim lTestArray(1) As String
Console.WriteLine(lTestArray.Length) (writes 2)

View 2 Replies

Invalid Length For A Base-64 Char Array?

Sep 7, 2011

My program gets an encrpyted query string ,decrypts it and then pulls the pdfs in a popup window depending on the values in the string. The issue I am having is I have around 500 ids that I am passing whose pdfs need to be generated, but I keep getting the "Invalid length for a Base-64 char array".

Not sure what I need to do, I have read through the solutions and have done whatever has been said, with replacing the blank with the "+" but I cannot get this to work.

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
_CurrentProcName = "Page_Load"

[Code].....

View 9 Replies

Return Byte Array (start / Length)

Sep 20, 2010

Given a byte array of length 100..I would like to find a function that returns a byte array starting at index 15 and containing the next 20 bytes.

View 4 Replies

Storing Data With Unknown Length In Array

Jan 15, 2010

I have a piece of code written in Visual Basic:

Dim n As Double, i As Integer
n = 4
Dim Ramp_length(1 To 4) As Double
For i = 1 To n
Ramp_length(i) = Cells(13 + i, 5)
'Cells(65 + i, 7) = Ramp_length(i)'
Next i

Is there a way I can reproduce the result without declaring the array with a "fixed" length? I eventually want the code to read off a column of data with unknown length and store it in an array of equal or smaller length so it can be altered.

View 3 Replies

Transfer An Array Of Variable Length Between Subroutines?

Feb 3, 2011

I have 2 arrays X(n) and Y(n). I would like to pass them between subroutines:

Sub sub1()
...
call sub2(X,Y)[code]...

The problem comes when n can be changed in sub1 say a textbox. How do you transfer an array of variable length between subroutines?

View 3 Replies

VS 2005 - Length Of Array Is Integer Variable

Apr 26, 2009

I have a problem when debugging a code. On top of class I declare an array, and the length of array is an integer variable which is applied value below declaration of array.

E.g. class declaration
Dim array1 (2, integer) as string
Public Sub
integer = 5
End Sub

So basically, array is created with integer being 0 or whatever, because it is declared before integer was assigned a value. But the problem is, I need it to be declared at class variable so I can use array in different subs.

View 3 Replies

VS 2008 Read In Every Length In String Array?

May 10, 2011

I have a problem to make the comparison from char to string array using Naive Algorithm in vb.net.[code]The problem is the system cannot compare the input from s1 to compare with s2.

View 15 Replies

VS 2008 String Into Array Based On Length

Jul 20, 2010

how to split a string into an array based on it's length?Say if I want the length to be 350 then every 350 chars in a textbox will be split into an array like [code]

View 14 Replies

Define The Length Of The Array Ball() In Tinnings Structure To 6?

Feb 12, 2010

Structure Tinnings
Dim bowler As String
Dim ball() As tballs
End Structure

[code].....

how can i now define the length of the array ball() in Tinnings structure to 6, (its a cricket program, with 6 runs in an over).

View 3 Replies

Determine Length Of Array From Number Of Items Entered

Nov 15, 2009

I am trying to program the hamming code in vb... theoretically i understand and know how to do everything, first problem I've encountered is dynamic arrays in vb.net ... is it possible to determine the length of an array from the number of items entered in it, since I have no means of figuring out an exact number or length prior to several mathematical function which outcome will be the data .. directly saved to the array !!

View 4 Replies

VS 2010 Array Count Characters In Unknown Name Length?

Feb 6, 2012

I need to seperate a name into 2 parts using split the first part being 2 letters "That was easy" but the last part of the name would have an unknown lenght. so how do I get the unknown length? I believe I understand the Join Part here is what I have but it only works when you know the lenght of the name

Project Notes
'Form has two textboxes and one button
'first text box holds a first and last name
' 1-seperate the first and last name into 2 variables

[code]....

View 7 Replies

VS 2010 Create A ProgressBar With Array Length Without Timer Object

Mar 30, 2012

[Code]...

I want to create a ProgressBar with my array length, whithout timer object. When ProgressBar increment, the value in array appears in a label.

View 7 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved